What do you think of people who see a person who has been severely hurt and decide to place with this person like a cat with a mouse?

i was treated in an appalling way by some people that will not leave me alone they knew i had been hurt in the past and worked hard to gain my trust in an attempt to take everything i hold dear to me. this didn't work so they decided to emotionally play and break me. i was abroad last year when a stranger was kind to me, so i embellished his kindness for something more in the hope that i would be left alone by some people back home. i know i was wrong to do this and i feel guilty and shame for pretending that it was something more when i know he was never interested. how can i move past the guilt of using him? i was very fond of him.